I want to create a "multilayered 2-D" animation with Blender. By this I mean having many images that are 2D but from the cameras point of view some are closer and some are further away. I want to zoom in with the camera to parts of the images. I want to be able to move the images sideways from the scene so that the image behind is revealed (think of old theatres and their props).

Is there a guide how to do this? I cannot for the life of me even get a SINGLE background image loaded currently..